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SCHOOL OF PHYSICAL SCIENCE: Recent submissions

Now showing items 161-180 of 637

Assessment of some selected conventional diagnostic x-ray facilities at Cape-Coast in the Central Region of Ghana

Owusu-Banahene, J; Owusu, I; Awuah, Baffour; Darko, E.O (University of Cape Coast, 2015-09-29)

The aim of the present paper is to assess some of the factors affecting on quality assurance of some conventional X-ray facilities such as reproducibility of tube voltage, dose output, X-ray tube consistency, accuracy of ...
Assessment of nine micronutrients in jasmine 85 rice grown in Ghana using neutron activation analysis

Amoako, George; Sefa-Ntiri, Baah; Amoah, Samuel; Sackey, Samuel Sonko; Amuah, Charles Lloyd Yeboah (University of Cape Coast, 2020-09-28)

The amount of micronutrients in food is a key factor that determines the health status of a person. The concentrations of nine micronutrients, Sodium (Na), Magnesium (Mg), Chlorine (Cl), Potassium (K), Calcium (Ca), ...
Assessing the adsorptive and Photodegradative Efficiencies of ZSM-11 Synthesized from Rice Husk Ash

Anang, Michael krofi; Zugle, Ruphino (University of Cape Coast, 2020-09-09)

Rice husk was used to synthesize zeolite (ZSM-11). FTIR and X-ray diffraction methods were used to characterize the product. &e synthesized zeolite was used to treat underground water from some communities in Cape Coast ...
A retrospective study of lower limb cellulitis in a regional hospital in Ghana

Mensah, S; Maison, P; Morna, M; Cobbold, S; Duah, AA; Debrah, S; Ganiyu, R.A (University of Cape Coast, 2019)

Background: Cellulitis is a non-necrotizing inflammation of the dermis of skin and subcutaneous tissues. Lower limb cellulitis is a common cause of hospitalization in Ghana but scarcely reported. Objective: To document ...
Applying cluster refinement to improve crowd-based data duplicate detection approach

Haruna, Charles Roland; Hou, Mengshu; Xi, Rui; Eghan, Moses Ojo; Kpiebaareh, Michael; Tandoh, Lawrence; Eghan-Yartel, Barbie; Asante-Mensah, Maame G. (University of Cape Coast, 2019-06-04)

In this paper, we present an extension on a hybrid-based deduplication technique in entity reconciliation (ER), by proposing an algorithm that builds clusters upon receiving a pre-specified K numberof clusters, and second ...
Application of pseudocyclic inaa to determine se, sc, and dyn Ghanaian fishes using gharr-1

Hood, C. O.; Vowotor, M. K.; Nyarko, B. J. B.; Fletcher, J. J. (University of Cape Coast, 2011)

Pseudocyclic Instrumental Neutron Activation Analysis, INAA, was applied in the determination of Se, Sc, and Dy in Selene Dorsalis, Pomadasys peroteti, Brachydenterus aurita, Selar crumenophthalmus, Sargocentron hastatus, ...
Appearance of negative differential conductivity in graphene nanoribbons at high-harmonicsa)

Rabiu, M.; Mensah, S. Y.; Abukari, S. S. (University of Cape Coast, 2012)

We theoretically study current dynamics of graphene nanoribbons subject to bias dc and ac driven fields. We showed that graphene nanoribbons exhibit negative high-harmonic differential conductivity. Negative differential ...
Anomalous viscosity of vortex hall states in graphenea)

Rabiu, M.; Mensah, S. Y.; Ibrahim, S. Y.; Abukari, S. S. (University of Cape Coast, 2015)

We study temperature effect on anomalous viscosity of Graphene Hall fluid within quantum many vortex hydrodynamics. The commonly observed filling fractions, ν in the range 0 < ν < 2 is considered. An expression for anomalous ...
An experimental investigation of the break-up of a liquid drop falling in a miscible fluid

Arecchi, F. T.; Buah-Bassuah, K.; Perez-Garcia, Francini C.; Quercioli, F. (University of Cape Coast, 1989)

A liquid drop falling in a lighter miscible fluid either undergoes a cascade of fragmentations, each appearing as a dynamic instability, or it mixes by diffusion, depending on the value of a fragmentation number F. F is ...
Amplification of acoustic waves in armchair graphene nanoribbon in the presence of external electric and magnetic fields

Dompreh, K.A.; Mensah, S.Y.; Abukari, S.S.; Sam, F.; Mensah, N.G. (University of Cape Coast, 2015)

Amplification of acoustic waves in Armchair Graphene Nanoribbon (AGNR) in the presence of an external electric and magnetic fields was studied using the Boltzmann's kinetic equation. The general expression for the amplification ...
Amplification of terahertz radiation in carbon nanotubes

Abukari, Sulemana S.; Adu, Kofi W.; Mensah, Samuel Y.; Mensah, Natalia G.; Dompreh, Kwadwo A.; Twum, Anthony; Rabiu, Musah (University of Cape Coast, 2013)

We investigate theoretically the feasibility of amplification of terahertz radiation in aligned vachiral carbon nanotubes, a zigzag (12,0) and an armchair (10,10) in comparison with a super lattice using a combination of ...
Generation and amplification of terahertz radiation in carbon nanotubes

Abukaria, S. S.; Mensah, S.Y.; Mensah, N. G.; Adud, K. W.; Rabiu, M.; Dompreh, K. A.; Twum, A. (University of Cape Coast, 2012)

We investigate theoretically the feasibility of generation and amplification of terahertz radiation in aligned achiral carbon nanotubes (zigzag and armchair) in comparison with a super lattice in the presence of a constant ...
Amplification of hypersound in graphene with degenerate energy dispersion

Dompreh, K. A.; Mensah, N. G.; Mensah, S. Y. (University of Cape Coast, 2015)

Hypersound amplification/absorption of acoustic phonons in Graphene with degenerate energy dispersion ε(p) near the Fermi level was theoretically studied. For kβT << 1 and ql >> 1, the dependence of the absorption coefficient ...
Amplification of acoustic waves in armchair graphene nanoribbon in the presence of external electric and magnetic field

Dompreh, K. A.; Mensah, S. Y.; Abukari, S. S.; Sam, F.; Mensah, N. G. (University of Cape Coast, 2015)

Amplification of Acoustic Waves in Armchair Graphene Nanoribbon (AGNR) in the presence of an external Electric and Magnetic field was studied using the Boltzmann’s kinetic equation. The general expression for the Amplification ...
Amplification of acoustic waves due to an external temperature gradient in super lattices

Mensah, S Y; Kangah, G K (University of Cape Coast, 1991)

Amplification of short-wave sound propagating along the axis of a semiconductor super lattice by electrons of the lowest mini band in an external temperature gradient is investigated theoretically. The mechanism of absorption ...
Amplification of acoustic phonons in a degenerate semiconductor superlattices

Mensah, S.Y.; Allotey, F.K.A.; Mensah, N.G.; Eloh, V.W. (University of Cape Coast, 2002)

Amplification of acoustic phonons propagating along the axis of a semiconductor superlattice (SL) is investigated using the microscopic theory. A non-quantizing electric field is applied to the S to produce a drift velocity ...
Amplification of acoustic phonons in superlattice

Dompreh, K.A.; Mensah, S.Y.; Mensah, N.G.; Abukari, S.S. (University of Cape Coast, 1970)

The amplification of acoustic phonons in a superlattice in the presence of an electric field cos( ) has been investigated theoretically and numerically by computational methods. The calculation is done in the hypersound ...
Studies of alpha particle registration in lr-115 type iiStudies of alpha particle registration in lr-115 type ii a solid state nuclear track detector a solid state nuclear track detector

Cwar, M. F.; Geraldo, L. P. (University of Cape Coast, 1981)

The experimental condition for use of the cellulose nitrate film LR-115 type II as alpha pa»tide detector? It was verified that the film* efficiency it • function of the alpha particle energy and etching conditions. The ...
High frequency conductivity in carbon nanotubes

Abukari, S. S.; Mensah, S. Y.; Mensah, N. G.; Adu, K. A.; Rabiu, M.; Twum, A. (University of Cape Coast, 2012-12-05)

We report on theoretical analysis of high frequency conductivity in carbon nanotubes. Using the kinetic equation with constant relaxation time, an analytical expression for the complex conductivity is obtained. The real ...
Adsorptive removal of iron and manganese from groundwater samples in Ghana by zeolite y synthesized from bauxite and kaolin

Kwakye-Awuah, Bright; Sefa-Ntiri, Baah; Von-Kiti, Elizabeth; Nkrumah, Isaac; Williams, Craig (University of Cape Coast, 2019-09-13)

Ground water samples from residential homes in three Regions of Ghana: Central, Greater Accra and Ashanti, were analyzed for iron and manganese contamination. The samples were exposed to characterized zeolite Y y X-ray ...

Now showing items 161-180 of 637

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